Combined body-bolster and draft-sill casting



Jun@ 24, w3@ w. s. TROWBRIDGE @7359455 COMBINED BODY, BOLSTER AND DRAFT SILL CASTING Filed July 25, 1928 s sheets-sheet 1 June 24, 1930. w s, TROWBRIDG 1,765,465

i COMBINED BODY BOLSTER AND DRAFT SILL CASTING Filed July 25, 1928 3 Sheets-SheetA 2 m@ 24, 193@ W2 s. TROWBRlDGE f COMBINED BODY BOLSTER AND DRAFT SILL CASTING yFiled July 25, l1928 v 3 Sheets-Sheei 3 Patented June 24, 1930' UNITED STATES PATENT OFFICE 'WILLIAM S. TROWBBIDGE, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN STEEL FOUNDRIES, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY COMBINED BODY-BOLSTER .AND DRAFT-SILL .CASTING Application led July 25,

This invention relates in general to a body bolster, draft sills and buffer block assembly for railway cars, and in particular to that type in which these units are formed by a single cast element.

The object of the invention is the production of a workable and practical structure as above indicated comprising to a high degree lightness and strength, with reasonable first cost and the minimum maintenance.`

In the accompanying drawings, I have illustrated one adaptation of my invention in order that it may be readily comprehended, but it should be understood that the form shown is merely indicative and that the invention is by no means limited thereto.

In the drawings that form a part of this\ application,

Figure 1 is a top plan view of the unit castings.

Figure -2 is a section on the center line of the car, while l Figure 3 is an end elevational view of the casting of the present invention as seen from the right of Figure 1, with one-half of the disclosure shown in cross section taken on the centerline of the body bolster.

Figure l4 is an end view of the bufferblock.

Figure 5 is a side projection of the bolster` sections and side sill supporting brackets, while 4 Figures 6 and 7 are sections through the draft gear housing taken on line 6--6 4and 7-7 respectively, Figa 1, and looking in the direction of the arrows.

Considering the structure illustrated, it'

lverse and longitudinal vertical webs 22-22 and 23-23. Located in the lower plate is a socket and bearing surface 24 for'the truck center bearing pin.

Continuous with the upper and lower plates are the side walls 25-25. These side walls are extended to form the supporting brackets 26-26 for the eide Sill members.

1928. Serial No. 295,322.

One of these side sill members is indicated in broken lines at 27 and is a construction well-known in the art.

The bolster portion 'is further provided with the two body side bearings 28-28; the bearingplates are carried by open box structures, formed by the extensions 29-'29 of the side walls, the downward curving sections 30-30 of the bottom member21 located between the transverse webs 22-22, and by the end webs 231-31.

The openings` 32-'32, 33, S11- 34, 35-35 and others of similar character in the vari ous members arefprovided for facility of manufacture and for reduction of weight without material sacrifice of strength.

' Projecting forward as an extension of the bolster proper is the draft sill casting. This comprises top flanges 36-36, the bottom flanges 37-37, the draft lugs 38-38 for receiving the thrust of the draft gear,.the sills 39-39, the side web walls 40-40 and the bosses I1-e411 for retaining the draft gear carrler iron.

On the forward endl of the draft sill casting is located the unit cast buffer plate or deadwood 42.

It is believed that the detailed construction of this disclosure will now be readily understood from the above description but it is to be borne in mind that among the important features of this invention is the provision for an integrally formed body bolsterv and draft gear housing in which the body bolster is provided with enlarged ends as shown in Figure 1, whereby an unusually large or elongated surface is provided at the shelves 26 for supporting the side sills.

side bearing pedestal whereby this shelf or side sill support 26, together with the side sill surface 28 and the end wall 29, .of the side sill of the pedestal is of a substantially Z construction. It will be obvious that this arrangement provides for substantially a direct thrust from the side sills of the car to the side bearings. This construction in addition, provides in effect, a body bolster construction which, in so far as strength is concerned, is of substantially the same depth at the end as it is at the center, that is to say, the ends of the bolster when considered with the side sill pedestals, provides a construction of substantially the same depth as that ofthe center portion of the bolster.

In view of the above, a further feature, is that of providing a pedestal in the above advantageous construction by means ofthe arching under wall surfaces of the body bolster as indicated at 30.

With these special features specifically I pointed out, the applicant will'now claim Y central portion of said body bolsterl and said what he considers novelty in his construction.

Having described my invention, what I claim as new is:

l. A casting for railway car construction comprising an integrally formed body bolster and draft gear housing, said draft gear housing extending perpendicularly from the central portion of said body bolster and said body bolster having enlargements Iat its ends of greater length than the width of said bolster and extending longitudinally of the railway car. j I

2. A castingfor railway car construction comprising an integrally formed body bol-- ster and draft gear housing, said draft gear housing extending. perpendicularly from the central portion of said body bolster and said body bolster havingenlargements at its ends `of greater length than the width of said bolster and extending longitudinally of the railway'car, said enlargements having laterally projecting horizontal shelves extending therefrom constituting supports for the side sills of the car.

3. A .casting for railway car construction comprisin an integrally formed body bolster and raft gear housing, comprising a pair of spaced parallel members extending perpendicularly from vthe central portion of said body bolster and said body bolster having enlargements at its ends of greaterV length than the width of said body bolster and extending longitudinally of the car.

4. A casting for railway car construction comprising an integrally formed body bolster and draft gear housing Said draft gear' housing extending perpendicularly from the body bolster having enlargements atits ends of greater length than the width of said bolster and extending longitudinally of- 'the' said body bolster and said body bolster havv ing enlargements at its ends rof greater length than the width of said body bolster and extending longitudinally of the car and a buffer block integrally formed with and connecting the outer ends of said spacedv parallel members of the draft gear housing.

6. In a railway car construction, a body bolster of general box-like construction having end walls, said end walls being substantially the same heighth as the central portion of said body bolster and being provided with laterally and horizontally extending side sill shelves projecting from locations intermediate the heighth of said end walls.

Y ing end walls, said end walls being substantially the same heighth as the central portion of said body bolster and being provided with laterally and horizontally extending side sill shelves projecting from locations intermediate the heighth of said end walls, said body bolster having portions of its lower wall arcuately disposed and being provided with side bearing sills at its outer underneath surface whereby the lower end port-ion located below the side sill shelves constitutes a side bearing pedestal.

8. A body bolster for railway cars of general box-like construction' having an end wall substantially vertically disposed with a laterally and horizontally extending shelf projecting from an intermediateportion of the heighth of said end wall and a sidel bearing surface on its underside immediately adjacent said end walls,.whereby said side sill shelf and said center bearing surface together with the included portion of the end wall constitute a construction of substantially Z cross section.

Signed at Chicago, Illinois, this 19th day of July, 1928. v

i WILLIAM S. TROWBBIDGE. i 

